Quote:
Originally Posted by gmachinz
There are a few options. The most common is adding relay off the switches to carry the voltage load. Its more efficient than the switch carrying the loads. I take it a step further by adding solid state relay modules to provide relay power AND auto down. I also make them with auto up as well for most years. Relays can be easily added to your existing harness IF they are in good shape-the most common problem is the wire strands coming out of the OEM switch cavities break apart over time. I've solved this design flaw in my harness constructions but if you use your existing harness just be sure to carefully inspect it all before adding any kind of mod such as a relay upgrade.
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I have new ACDelco switches that I haven't installed yet. Could I use them for your auto up/down mod?