Porsche CR-31 GAL signal?

Apr 11, 2006 2 Replies
C

I came across a Porsche CR-31 radio that has a GAL(speed dependent volume) input.



What must be input to make this function correctly? 0-5Vdc, PWM,



0-Vign, or ....

It would be nice to have speed dependent volume in my car. I'm not too worried about "hacking" it. The radio I have is already aftermarket(I really dont' care). I only listen to FM.



The only reference I have been able to find suggested hooking it to the speedometer signal. Having no idea what the speedo in a Porsche gets for a signal this is only mildly informational.



Anyone know?



Thanks



Jeridiah



Vote
Twitter Facebook LinkedIn
J

I've owned a car with speed adjusted volume. It's not worth the trouble. Forget it.

Vote
Twitter Facebook LinkedIn
C

Actually, I was thinking about putting steering wheel controls in to control the signal if I could figure out what I need to input. Speed based volume control might be nice too.

I have rented a few cars with it, and I thought it was sort of neat. But the remote controls would be the best part. The radio is not in what I would consider a convenient location in my car(down low and ahead of the shifter).

JW

Vote
Twitter Facebook LinkedIn

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required