For a seamless installation, trace the pink wire from the factory harness–it delivers constant 12V power for memory retention. The red wire supplies switched ignition power; splicing it ensures the stereo powers down with the key. Ground connections require direct attachment to bare metal, preferably the chassis near the dash mount; avoid painted surfaces to […]

Locate the fuse block under the dashboard–your first checkpoint. The red wire with a black stripe connects to the ignition circuit; splice it to the yellow accessory lead from the aftermarket unit. Verify voltage with a multimeter: 12V+ should register when the key is in the ACC position. Failure here indicates a blown fuse (typically […]

Begin by locating the main relay terminal on the passenger-side fender. The thick red cable from the battery connects here first–secure it with a 10mm socket to prevent voltage drop. Next, attach the purple trigger wire from the ignition switch to the smaller S-terminal on the relay. This circuit must handle 12V without resistance; verify […]

For a direct retrofit, wire the outer contacts of the 6-terminal plug to the corresponding outer connections on the 8-terminal GM harness. The primary power feed (typically marked +5V) on the GM side connects to the top-left contact of the 6-terminal unit; ground routes to the bottom-left. Ignore the two inner auxiliary lines on the […]