[Slusser]

Hello, just a quick question, my radio display in my '03 SVT is messed up. Show weird symbols and blanking out. Has anyone had this issue or know what's up? Thanks

https://vimeo.com/105644540

 

[freemind]

You can run a new ground wire for the head unit and hope.

But IMO it's new head unit time.

 

[ViperThreat]

The 9006 headunit is notoriously bad. Get your disks out while you still can.

Your best bet is to get an aftermarket replacement. You can fit single and double-dins(with minor modification). Even the basic $100 pioneer/kenwood units will be an upgrade in terms of sound quality for you.