I have changed the lights on a 1500CXLD when replacing name plate. Lights are not expensive and would be easy to wire with only one. Call and talk with Scott Wallace at SmokinTex. He is very knowledgable and if you tell him what you want to do I am sure he could give you detailed instructions. The hardest part would be drilling the hole. OR, you can check out one of those watt hour readers. Such as a "Kill-A-Watt" You might even find one with an app for your phone.
1500CXLD, Amerique, PG1000, Tappecue, Thermopen
Good Meat deserves a REST!
It's done when it's done and
If you're happy with the results, that's ALL that matters