Hi Ron, thank you for reaching out. Yes. You can splice the wires of the parking light. Click this link to view the installation guide: https://anzousa.freshdesk.com/support/solutions/articles/69000182254-1999-2004-ford-f-250-350-super-duty-2000-2004-excursion-crystal-led-strip-c-bar-headlight-sku-11108 You can use this link to order the part and take advantage of our low price for this item: https://www.carparts.com/headlight/anzo/a1r111550?can=CPAP3648_CSQA_20231008 I hope this helps. Happy shopping.

Hi Weston, I'm glad to assist you. They are replaceable. You can easily get replacements at the local part stores around your area. I hope this helps, and if you're interested in these headlight assemblies, you can click on the link below for direct ordering to take advantage of our ongoing discount and limited stocks. Happy shopping. https://www.carparts.com/headlight/anzo/a1r111550?can=CPAE1047_CSQA_20221103

Hi Jim, I'm delighted to be able to help you. Yes, the bulbs are a combination of halogens and LEDs, and all the bulbs are included. They are regular or standard bulbs, not test bulbs. It may not come with installation instructions, but you can check Google and YouTube for that. Just search for "How to install Anzo 111550". You don't have to worry about the electrical wiring. All the wiring is in a harness connector and all you have to do is attach the 2 connectors (from the headlights and from the vehicle) and you're all set. While supplies last, click on the link below to place your order. You'll get a 30-day post-purchase price match guarantee with your purchase. I hope this helps. Have fun shopping at CarParts.com! https://www.carparts.com/headlight/anzo/a1r111550?can=CPGG4850_CSQA_20220823