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Old 12-31-2012, 08:41 PM   #7
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glynb's Avatar
Joined: Feb 2006
Location: N/W Louisiana
Oddometer: 783
Originally Posted by shu View Post
Here's a 'glue in' solution that will work for your needs. I've been meaning to post this for a while, so this looks like a good place to do it.

I had similar problems-
1. USB connection too loose,
2. USB connection not waterproof
3. need to be able to remove the unit from the bike and plug it into a computer or into my car.

Here's what I did:

1. to tighten up the connection cut a small sliver of plastic from a cheap bottle of water, bend it 90 degrees and slide it into place as a shim between the Nuvi case and the USB connector. Tape it in place ( If you squint you can see my duct tape down the side of the Nuvi case). This will take up all the wiggle room and keep the connector tight. [Edit: now that I think more about it- I think the little piece of plastic actually went right into where the USB plugs in- that would make more sense. This has been a while, so you'll have to figure this one out!]

2. Go here:
and get a 4" "Up angle, mini B USB extension" $12. (Check the pictures on the web site to make sure it's up angle and not down angle- it's been a while since I ordered and with mine glued in I can't see it anymore.)

3. Slather the connections with dialetric grease, plug it into the back of the nuvi and then glue it in with RTV, sliver of plastic and all.

4. Make a rain shroud for the other end: take a large diameter piece of shrink tube and shrink it down over the wire and connector at the other end, making sure not to shrink the part where you will have to plug in your hardwire from the bike. I glopped some more RTV where appropriate.

5.Modify the RAM cradle so that you can rotate the device in and out with the extension attached. I used a dremel. It looks like it would leave the cradle very weak but actually that part does very little for holding in the Garmin.

Voila! The finished product. Rough looking, but now with a waterproof, vibration free connection and the portability you want.

Works for me anyway.

Hey Shu,

Just wanted to tell you that I ordered the usb cable you suggested from usbfirewire and conducted the upgrade on my Nuvi 550 that you detailed. The only differences were that I did not put a piece of plastic in the usb connection at the back of the Nuvi because the connection usb to the cable itself fit tight in the back of the Nuvi. I could not fit a piece of plastic in the opening. I also used black RTV silicone instead of clear, and used layers of black guerilla tape instead of shrink tubing. It doesn't look quite as good as your set up, but it works perfectly. I have ridden in a downpour with the Nuvi set up and the waterproofing connections work perfectly. No power loss at all so far.

Under Vendors there is a company that makes watertight usb cables and connectors, that although they look good, are quite expensive. I figure this usb set up saved me over $50.00. Thanks for the tip.

2014 Honda CB1100 DLX
2002 Honda ST1100 "Stella" Gone but not forgotten!
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