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Dometic Coolmatic CD30 fridge wiring question

Barrett1

Grenadier Owner
Local time
2:17 PM
Joined
Mar 17, 2025
Messages
35
Location
Utah
This is a bit preemptive but I am receiving and hoping to install my goose gear drawer system with Dometic Coolmatic CD30 fridge today. I like the idea of either hardwiring into the existing cigarette plug in the back of the truck on LHS (drivers side USA) or wiring an arb plug which screws in and wont come disconnected like a simple cigarette plug can. I say this is preemptive because I don't yet know what type of wiring the fridge has come with and haven't looked into the wiring in the factory cigarette plug behind the panel yet. I like this idea because I can turn on the overhead switch to keep fridge with power when truck is off but turn the switch off when not using the fridge and assure it is not sucking any power. Questions are as follows:

1) Is this a good idea? I have read that sometimes cigarette plugs do not have large enough gauge wire and the compressor can be iffy whether it is running or not when it should be. Maybe the grenny uses larger gauge wires?? and this is not an issue.

2) Is there a better way, I know some people are wiring straight to factory second battery, which I do have. I also have the high load switch panel if that is pertinent.

Excuse my naivety. Electrical things are really not my strong suit.

Sean
 
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