# 2000 Chevy Express 3500

**URL:** <https://community.cartalk.com/t/2000-chevy-express-3500/68103>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet, express3500\
**Created:** [September 22, 2011, 1:57am UTC](https://community.cartalk.com/t/2000-chevy-express-3500/68103 "2011-09-22T01:57:29Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![MoonmanVT](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/moonmanvt/32/1198_2.png) [@MoonmanVT](https://community.cartalk.com/u/MoonmanVT)\
**Post date:** [September 22, 2011, 1:57am UTC](https://community.cartalk.com/t/2000-chevy-express-3500/68103/1 "2011-09-22T01:57:29Z")

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We have a Roadtrek Camping van built on a Chevy 3500 chassis. The ashtray has no light, fixture, or wires nearby. I found a 12 vdc miniature light at Radio Shack that will fit the area where a light is supposed to go, and I can route the wiring so it is hidden. I would like to hook the + wire on the light to the instrument panel dimmer, but I can’t find any info identifying which color code the wire would be. I purchased a repair manual for the van, but the schematic is unclear. I have already disassembled the lower dash unit, and I can clearly see/access the headlight switch. Any help would be greatly appreciated.