AUX-in for 99 Formula question
Hey, you could make out really good here. She won't know the difference... tell her she has to buy it because there's something wrong with her car. Sell it to her for way too much (just about enough to buy an aftermarket HU), and put a new radio in your car. Win/win for you. Lose/lose for her... but what she doesn't know doesn't matter.
FWIW my HU is a very early HU and does not have the "A" on the CD drive... I am thinking there is something else that decides whether or not a HU can use the GM9 possibly.





