Best place to wire 12v Gauge? - Lexus IS Forum
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post #1 of 2 (permalink) Old 02-09-2019, 10:54 AM Thread Starter
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I just got a AEM wideband gauge and was wondering where the best place to wire the 12v accessory wires would be. Ive seen a lot of people wire them into the fuse box but how would one wire an accessory into a fuze? is offline  
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post #2 of 2 (permalink) Old 02-13-2019, 06:28 PM
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I believe i used the cig lighter, do not use the radio 12v switched circuit. The radio circuit gave me a error code after 1 week of troubleshooting and a few phone calls to AEM support the 12v signal was not clean enough for aftermarket radio and gauge. Hope it helps

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