2004 GMC 1500 Sierra. Question: How to and what special tool is required to replace radio.

There are no special tools required to remove the radio. Just a couple basic hand tools. First off, you need to remove the instrument panel bezel that goes around the radio, cluster, heater control head and headlamp switches. It is one big piece, but comes off easily. You will want to tilt the steering wheel as far down as possible and move the gear shift down into low 1. Then pull gently at the edges of the trim piece and it will pop out of it's retaining holes. Then, to take the radio out, there are four 7mm bolts that need removing, two on each side of the radio. Pull the radio out and disconnect the antenna and wiring connectors. Reverse steps to reinstall.

2004 Chev Silverado. 4.8L Vortec.
Question: accessory power outlet blown fuse can,t tel from fuse diagram which fuse controls the outlet.

Answer: The fuse for that is in the under hood fuse block, labeled " AUX PWR" Located to the right of starter relay, next to "RR HVAC" in the block. Best to just check all fuses.

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