jaysin

if I'm replacing both radio and speakers do I hae to mess around with the reciever unit?

plan to just wire power-batt
ing - fuse pannel radio
ground-ground
pwr ant- ????
what wire would this be?
will I have any security issues?

Churchkey

Changed out the system in my 90 this spring. Installed a Sony single din with mount from Crutchfield. Used the Bose speaker mounts & cut them for the 5&1/2" fronts & 6x9 rears.

Link to C4 audio section:
http://forums.corvetteforum.com/audi...audio-faq.html

Follow this TSB for installation of the resistors that are required with a radio change. I had my parts for 6 months before I had time to install them & forgot about installing the resistors. The ATC immediately quit working.
http://www.corvetteforum.net/c4/dave8476/index4.shtml

You can leave the tuner in place if you want to.

The original antenna lead will fit/reach.

There is a good ground source behind the glove box. 10mm socket size.

At the tuner you will need the connectors with:

Orange wire = hot all the time, radio memory/clock.

Pink wire = power antenna.

White wire = Hot in run & acc.

Finding the circuit the TSB refers to for the resistor power hook up was puzzling. I tied them to the keyed white wire, all is well.

GL

jaysin

OMG either to many beer last night or not enough today? Can't read that wiring diagram (blurry) what wires are for the lights? and tie them to what?

coupeguy2001

what year car?

jaysin

sorry 1990

Churchkey

Resistor connection:
First resistor: One end connects to the purple/white, the other end to the keyed 12v.

The second resistor connects to the gray/black, the other end to the keyed 12v.

finley13

got a 1995 that the sys flasher, were do I put these resitors at? Thanks

krackenvette

@Churchkey. If an aftermarket stereo is installed, can it make the Automatic AC system flash. You state it did not work. What did not work?
OOPS, didnt see the date on this thread/