Stock Radio Voltage out to power amp

December 03, 2018, 04:33:41 AM

I know with the stock premium sound in our cars the amp takes 12 volts from the head unit. 

I know on the later style head units there was a switch at some point in the mid 90s to where the power output to an amp was 5 volts.....


Anyone know when that exact switch was made and if any of the mid 90s JBL amps are 12v or 5v?

Stock Radio Voltage out to power amp

Reply #1 – February 04, 2019, 10:25:57 AM

Someone anyone?  Iv'e heard anywhere from 92 to 95.....  Any definitive info, please lat me know.

Re: Stock Radio Voltage out to power amp

Reply #2 – June 08, 2022, 04:08:31 PM

I know this is super old but are you referring to the remote turn on led voltage from the head unit to the amp?  I know for sure that the 1994 and up Mustangs have 5V+ for the remote amp turn on.

To get around it you can use this:

https://www.amazon.com/Axxess-Interface-AFDI-5V-Ford-Step/dp/B00200K1X4