Adding relays is a great idea, it takes a lot of load off the switch.
Modern switches are not anywhere near the quality the original switches were. I put 4 different aftermarket switches on my son's car before we got one that actually worked. Each switch had a different issue. All 4 switches were from local auto parts stores (each store only had one on the shelf), but once out of the box, all 4 looked identical.
Be forewarned, just because you have installed a new headlight switch, that no longer means you have installed a good switch. Gene
Adding a relay is a great idea. Back in the 90's we had trouble with Dodge trucks burning the contacts on the headlite switches and headlties going out. It was because of the high current the headlites carry that over time it burned the switch. So they came out with a TSB to install a relay for the headlites to take the load off the switch. I installed many back then as they even had a part # for the harness with the relay they gave us to wire in. Ron
