Help
 

I have a 2020 jetta S 1.4 i had bought this amp adapter tried hooking it up saw that the radio wouldn’t turn on long story short i put everything back to how it was no amp after i did that car won’t start i get no power to anything i can use my key fob to unlock and open it i can power on the radio on i checked fuses relays everything seems fine but still car wont turn on

Welcome to the forum. https://i.ibb.co/KLf4Dsb/VWwelcome.gif

Its nice to see you made an intro on your own. ;)

You need to get your motor scanned (preferably with VAG-COM\VCDS) for any error codes logged in the ecu and post them, that will save a lot of guessing and check systems out.

Please tell us your car spec in your signature