when i press the on button it lights up for 5 secounds then shuts off. when i got the truck the po had it hooked up with key on only i found a constant hot & now it only stays on for 5 secounds changed it back & also tried other terminals i found a site for manuals
http://www.manualsonline.com/ butdidnt have one for mine its a JVC KD-S88BT any suggestions? ty