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-   -   Mirror tap fuse continues to blow (https://www.audiworld.com/forums/audi-a5-s5-rs5-coupe-cabrio-b9-220/mirror-tap-fuse-continues-blow-3055188/)

FLOS5IN 04-25-2023 04:10 AM

Mirror tap fuse continues to blow
 
I mirror tapped my radar detector and the fuse has blown twice now. I never had this issue in my S5, so I'm not sure what I could do to keep this from happening. The current fuse is a 5, should I increase it to 7.5? I'm not well versed with electronics, so any help is appreciated.

HyperS4 04-25-2023 05:28 AM

Are you using the exact same pins to tap?

FLOS5IN 04-25-2023 05:34 AM


Originally Posted by HyperS4 (Post 25810269)
Are you using the exact same pins to tap?

Yes, tapped into the yellow (red) and brown (black). Same as I did on my S5 as directed by @scoopman in his helpful post.

HyperS4 04-25-2023 05:37 AM


Originally Posted by FLOS5IN (Post 25810270)
Yes, tapped into the yellow (red) and brown (black). Same as I did on my S5 as directed by @scoopman in his helpful post.

Have you changed detectors at all? You can try upping the amperage of the fuse and see if that helps.

FLOS5IN 04-25-2023 05:39 AM


Originally Posted by HyperS4 (Post 25810271)
Have you changed detectors at all? You can try upping the amperage of the fuse and see if that helps.

Same detector as I used in my S5. Same mirror tap harness from Amazon. Current fuse is a 5A, would 7.5A do any harm?

HyperS4 04-25-2023 05:43 AM


Originally Posted by FLOS5IN (Post 25810272)
Same detector as I used in my S5. Same mirror tap harness from Amazon. Current fuse is a 5A, would 7.5A do any harm?

I wouldnt think so. Can you share the mirror tap harness youre using? My mirror tap has no fuse in it, just RJ11 to red/black pins.

FLOS5IN 04-25-2023 05:50 AM


Originally Posted by HyperS4 (Post 25810274)
I wouldnt think so. Can you share the mirror tap harness youre using? My mirror tap has no fuse in it, just RJ11 to red/black pins.

That's the one I'm using, RJ 11 to red and black. But the fuse that controls the mirror is in the footwell fuse box. Its at spot D1, uses a 5A mini fuse.

HyperS4 04-25-2023 05:52 AM


Originally Posted by FLOS5IN (Post 25810275)
That's the one I'm using, RJ 11 to red and black. But the fuse that controls the mirror is in the footwell fuse box. Its at spot D1, uses a 5A mini fuse.

Ahh, I see what youre saying. Which fuse are you tapping in the footwell? Ive always used the homelink fuse in every car with no issues. But you can bump it to 7.5 and see how it goes.

FLOS5IN 04-25-2023 06:16 AM


Originally Posted by HyperS4 (Post 25810276)
Ahh, I see what youre saying. Which fuse are you tapping in the footwell? Ive always used the homelink fuse in every car with no issues. But you can bump it to 7.5 and see how it goes.

I'm not tapping into any fuse. I'm tapping into the mirror harness in the mirror assembly. But the 5A fuse in the footwell is what powers the mirror, so that is the one that keeps blowing.

HyperS4 04-25-2023 06:18 AM


Originally Posted by FLOS5IN (Post 25810283)
I'm not tapping into any fuse. I'm tapping into the mirror harness in the mirror assembly. But the 5A fuse in the footwell is what powers the mirror, so that is the one that keeps blowing.

Right, I dont know why I said that. My brain slipped. Im using the Homelink fuse for my dashcam......anyway, yes you can bump the 5A fuse to 7.5 and try that.


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