LOL, I'm just the opposite.. I hate those things.
Usually get them with a remote starter wiring harness, I find they get in the way of a "stealth" installation. Especially on the remote starters that use all external relays - you end up with a pack of like 6 relays with 6 sockets attached, ends up larger than the whole starter unit. That said, I did use some of the GM ones that hold 2 relays, but they have smaller than normal pins on them.. They came out of the '98 Buick donor car, and fit inside the '98 fusebox. I must say those did clean up the area, where if I had just hard-wired the relays it would have been a mess, probably taped onto the side of the fuse box.. In the end they definitely are timesavers, and if you do have multiple relays that will be near each other and don't mind the extra size, a lot of the aftermarket ones also have interlocking tabs so you can "stack" as many as you want to side-by-side.
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Bob Williams
Multi-colored '86 Mutt, a work in progress! (3800SC running great! Fixed the bent roof, now I need an intercooler! Yeehaa!)