PAC ROEMINS-2 System Interface Kit to Replace Factory Radio and Integrate Factory Amplifiers for 1995-2002 Nissan Vehicles with Bose Audio Systems,Black

Works as described. Easy install

I previously purchased the SOEM-4 to connect an aftermarket receiver to the exisiting factory Rockford-Fosgate system in a 2010 Nissan Frontier Crew Cab. The head unit only produced 2.5V of pre-amp voltage, so the best course of action instead of using the Metra 70-7551 harness was to use the 70-7550 harness along with a LOC to use the high level speaker outputs of the head unit into the factory Rockford Fosgate amp.Reviews for the OEM-2 adapter were great, however -- that product appears to have been discontinued, and anyone ordering one seems to get an automatic "upgrade" to the SOEM-4. Take a look at the reviews on the SOEM-4, and you will see that you're in for a disappointment. I initially installed that unit, and it was huge - it did the job, but created a constant hiss whenever it came on with no music playing. Plus, the amount of wires behind the dash with the 70-7550 and the SOEM-4 were just out of control. Quality of the SOEM-4 is terrible as well, the cover doesn't stay on, people reported the pot knobs would just break off, solder joints would break from speed bumps..Out of curiosity, I figured I would try to locate the ROEM-NIS2, which uses the same vehicle interface as the Metra 70-7550 built in to it. Based on the reviews here, the ROEM-NIS2 seemed to make everyone happy.. Plus, the OEM-1 unit is a bit more compact, and much more solidly built. The most important part is that the audio quality of the OEM-1 excels, with no noise whatsoever. It took me 15 mins to swap out the SOEM-4 and 70-7550 harness for the ROEM-NIS2 and now I am finally happy with the results.Even though the application guide doesn't list many vehicles, and specifies it is for Nissan vehicles with Bose, it performs the same actions for Nissan vehicles with the Rockford Fosgate "premium" audio system as well (chances are, the systems are probably both manufactured by the same company, with Nissan licensing the Bose or RF name only).This was a great product, made well, and performs great.ALSO - one thing of note.. Another reviewer commented that you had to connect the two positives for high/low together for it to work properly.. I contacted PAC, and was informed that this was incorrect info -- if you have 4 speaker outputs with 8 wires, you will use just the HIGH (+) leads. The LOW (+) leads get taped off and not used. The only instance you would use the LOW (+) leads would be if you were utilizing the unit to connect low-level pre-amp outputs that had the RCA plugs stripped off.

I have a 2006 Nissan Maxima with the Bose radio no navigation. I wanted better phone integration while driving. I ordered a Jensen MPR210, the PAC ROEM-NIS2 and the Scosche NN1498B dash kit. I had to cal PAC with a couple of questions. The Jensen did not have an orange illumination wire PAC support advised to just tape that off. The Jensen had one blue wire for amp power on or antenna. PAC advised to connect both the amp power on and the antenna power to the blue Jensen wire. Finally there was the option of using the high or low level speaker outputs. PAC advised I should use the standard (black stripe) outputs and tape off the red stripe wires. Just soldered up the connections and plugged it in. The Scosche dash kit seems too large. I will have to work on it more to get the top of it flush with the rest of the dash trim. The Jensen and the PAC interface are awesome and it sounds as good as the old head unit did. The Jensen has a single "push to talk" button you hit to use Google Assistant that is much easier than using the old Nissan interface. All in all very happy.

For some reason the ground wire wasnt in right the harness right and it came off so im assuming its just a manufacturing defect on just my unit. I just connected it to the car chassis itself and everything else worked perfect.

If you have a 2005 350z with Bose (2indoor fronts-2tweeters-2rear-1subwoofer) (I also have navigation) you would need this. Beware that you will lose navigation voice guidance though. Made it easy to install my new Pioneer head unit without cutting factory wires. Just use heat-shrink 18-22 butt connectors (you need about 20) to connect the wires with the same colors to the Aftermarket stereo harness wires (coming with the new stereo). Ask me if you had any questions.Note: because the space behind the dash is too tiny, what I did was I places the NIS-2 box under the weather computer. Wires will reach both to the head unit and the factory wires with no problem.In terms of sound quality, I an getting pretty strong punches out of the factory subwoofer and clear sounds from other speakers. I am saving for a better sub as the new system is too strong for the factory (very mediocre) speakers. The NIS2 box that I received was blue in color, and nit black as seen in the picture. Do not panic. It must be the same thing as I had no problem installing the system.

I have been helping a neighbor with an '04 Pathfinder SE equipped with the Bose radio/amp system. Battery was going dead in 2-3 days if the car was not driven regularly. Narrowed down the parasitic current drain to the radio fuses that provide power to keep the head unit memory working as well as being able to eject CD's when the car is off. Something inside the radio was 'on' full time and drawing a steady 1/4 amp (250 milliamps) even with car completely shutoff. Finally bit the bullet and installed a new radio head unit but wanted to keep the Bose Amp. This level adapter routes 4 high-level speaker outputs through 4 circuits and allows individual adjustment down to the approx 4v level the Bose amp requires on the input. I just turned up each level adjuster till I noticed some distortion and back it down an 1/8 turn. Sounds great and will drive you out of the car on high volume. No more battery drain, no more dead battery after sitting for week and not driven. This is the adapter you want if you are replacing a Bose Head unit. Others using RCA outputs put out too low a signal for the Bose Amp and results in low volume levels. Hooking the high-level speaker outputs to the Bose amp causes distortion. This is the way to go.