Thread: Heads Up Display

I had bose in my car also and put an after market HU in. The only thing is after you put in the after market one you no long can see what track you are on on the HUD. It is sort of tricky installing an after market HU when you have bose. I wound up ditching the stock bose amp and installed a 4 channel amp to run my stock speakers. There are other ways but I found this to be the best. I believe if you just install the after market HU like you normally would the only real problem is that the volume control is more sensitive(if you will). In other words 50% volume now equals 100%, I am just throwing those numbers out there. If you want more help let me know. I did it three different ways before ending up with the way I have it now.

Everything still works on the HUD except what is associated with the radio, make sense? Also I haven't heard of relocating the HU. How doe this work? One more thing with the little adapter things you can buy, they don't work in grand prix's. You get a lot of "noise" in the speakers. They say you can here engine noise through the speakers. I am really happy with the way I did it, I think it turned out great. I have a friend that has the aftermarket HU just wired into the stock bose harness like you would on any other car without bose and it sounds great but the volume control is so sensitive. But it really isn't a big deal.

Originally Posted by notladstyle

You can get around the volume issue by wiring the RCA preamp outputs to the speaker leads. It sounds SO MUCH better that way as well.

I know I tried that but I can't remember why I didn't keep it that way. It might have been the sound because I put in aftermarket speakers also.

I went and bought the HU I wanted and then bought a nice 4 channel amp. I also removed all the rear speakers and installed a nice set of 6x9's. It was a personal choice because I plan to get rid of all the bose equipment in my car. I then wired in the HU like you normally would. Then wired in the amp to the HU like you normally would. Then in the trunk where the bose amp is I found the wires that go from the bose amp to the speakers and wired those wires to my new amp using the 4 channels of the amp to control the 4 corners of the car. I still have the wireing diagram that tells you which wires are what in the connectors at the bose amp. Also there is a remote wire that goes the the bose amp. I used that wire for the remote on my new amp, I just had to wire it in behind the HU. If that doesn't make sense let me know and I will try to explain it a little better.

But if you plan on leaving the bose speakers in the care I would splice in some RCA's and wire it up that way. I did try it this way but since I was getting rid of the bose amp the way I did it made more sense.

If you do it with the spliced RCA's it is much easier. I just spliced in some RCA ends on to the speaker wires behind the HU and plugged them into the RCA ports on the back of the HU. Either way let me know if you need more help, it has been awhile since I did mine but I will help you the best I can. Hope you found something useful in that mess I just typed

Bose is overrated anyways...... GO KENWOOD

If you wire it it like the color codes say it works fine, just your volume turns up faster. That is the only problem.

Originally Posted by notladstyle

actually wiring high level outputs into the low level inputs of the BOSE amp greatly reduces the sound quality and messes up the crossover points. Since the bose speakers are perfectly matched to the bose amp, changing the crossover points makes a decent sounding system sound horrible.

I guess I wired mine in by matching up the colors and it sounded fine to me, and my friend has one wired in like that and it sounds fine also. But personally I would splice in the RCA's if you are keeping the bose amp.