Remote Start: 2nd Ignition Relays Question

[NickPSI 10+ year member]

When buying relays for vehicles with 1st and 2nd ignitions to install a remote start, what should I look for? It just needs to be 4 terminal, correct? and what amperage? I have an old 40A from a foglight kit I used to have, and I found some inexpensive 30A 4 terminal. Should I just reference the fuse for the different ignition wires in order to size the relay? Any suggestions? Thank you in advance.

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[starkfu 10+ year member]

SPST (single pole single throw) 30 Amp should be good. I usually use the double throws, only cause I have them for other uses.

Make sure that your raw 12 volt feed to the ignition when the relay is triggered is fused and able to handle the current.

 

[Vestax 10+ year member]

Have you purchased the alarm yet? Most alarms will come with the 2nd ignition output built in.

 

[gl0ck 10+ year member]

Have you purchased the alarm yet? Most alarms will come with the 2nd ignition output built in.

All newer dei alarms will have 2nd ign/ 2nd Acc out puts

 

[NickPSI 10+ year member]

Well it isn't an alarm, it is just a standalone remote starter. Thank you guys for your help.