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I just had the tow mirrors installed on my 2017 Silverado, all is correct the puddle lights WIll ONLY come on if the cargo light paddle switch is in the ON POSTION it will function in Park, Neutral and Reverse ONLY. The puddle lights do not have any action with or when you enter or exit, with the UNLOCK AND LOCK on the key fob.

I just went directly off the battery to a 50 amp resetable breaker then of the load side of the breaker to the the bussman 15303-5 fuse/relay box on to the postive stud which is constant power for the mini fuses on one side and then all i did was run 18 gauge wire from pin #86 on the realy to the Auxiliary switch.

I just went directly off the battery to a 50 amp resetable breaker then of the load side of the breaker to the the bussman 15303-5 fuse/relay box on to the postive stud which is constant power for the mini fuses on one side and then all i did was run 18 gauge wire from pin #86 on the realy to the Auxiliary switch.

I just went directly off the battery to a 50 amp resetable breaker then of the load side of the breaker to the the bussman 15303-5 fuse/relay box on to the postive stud which is constant power for the mini fuses on one side and then all i did was run 18 gauge wire from pin #86 on the realy to the Auxiliary switch.

not sure why you would have to touch the iecm at all while installing the axillary switches, all you are doing is using the existing harness on the back of the Traction control and cargo light. Your using empty pin slots 10 11 12 13.

So if everybody is wondering on how to install these auxiliary switches (GM Oem P# 23145158) without the GM upfitter diagram. I purchased the Bussmann 15303 - 5 it is a weather tight fused and relay box, took the wiring diagram that GM up fitter provides and did my own diagram. I also purchased the Pre- crimp wires to go into the back of the harness (GM OEM P#13575783). Made it much easier than trying to figure out what size connector it was. Purchased all parts needed from Delcity.com. Wire I purchased at my local Automotive Store 12 gauge for 20 amp, 14 gauge for 15 amp, 18 gauge from relay (pin 86) to switches. Works Fanstastic. QTY 1 - 60 Amp Manual Reset circuit breaker Item# 76505 1 - Sealed Fused & Relay Panel 10 mini fuse & 5 Micro Relays Item# 15303543 2 - Mounting Brackets for 15303543 Item# 15303001 10 -15 mini fuses Item# 77155 10 - 20 amp mini fuses Item# 77205 8 - SPNO Ultra Micro ISO Relay 20 A, 12 V DC Item# 74981 10 - Green Cavity Plugs Item# 75042 20 - 12 Gauge Blue Cavity Seals Item# 75006 20 - 16-14 Gauge Grey Cavity Seals Item# 75004 20 - 20-18 Gauge Green Cavity Seals Item# 75002 20 - 14-12 Gauge Metri-Pack 280 Female Tangless Item# 12110845 20 - 16-14 Gauge Metri Pack 280 Female Tangless Item# 12129409 20 - 16-18 Gauge Metri Pack 280 Female Tangless Item# 12110847

I used 20 gauge but the oem part i ordered has tue correct connectors on them but tje wire size is 18 which is strange becuase everything elese in tje dash is 20 gauge whitch apprently gm wants you you to keep guessing...

What size wire went inside that connector was it 20 gauge or 18 gauge because I contacted GM parts at my local Chevy dealer and they said it just comes up as wire they didn't say anything about the size what type of connector

I just purchased a 2017 Chevy Silverado and I would like to find out about these axillary switches that everybody's been talking about. I called the dealer they said the switches are available with the part number that bearded up describe but my question is if anybody has any information regarding on how to wire them to the OEM factory harness with the Stability Control and the cargo lamp, I would really like to install the switches in my truck. And also I like to know the fuse locations where the axillary wires go to if anybody has any images that would greatly appreciate it thank you