Wiring into Delco Bose Deck....
 

Can you wire a cd changer or an mp3 player into a stock Delco Bose deck?
If so, how bad will the loss of quality be?

I bet you could, using the external CD changer input. Need a newer wiring diagram.

FM modulated ones plug in between your antenna, and your deck. They just take over a frequency, not broadcast it.

I did the FM mods w/ my 91 stereo.... the quality was very poor.

Any other suggestions?

May I suggest... External CD/Cassette player input? :D

Well it shouldn't be poor. Maybe you have a bad ground?

getting a new HU will make it 10x better, new HU with components, and a 4 way amp will knock your pulley's off.

Yea I know... I've got 12 speakers in my 91 + 3 subs w/ over 1000watts....
But I just like the look of the stock deck.... but more to the point I don't have the $$$ for the deck I want... hehe.