Ok do i need higher than 1amp diode on this??

Ok here

(12V+)----------[        | ]--------------SPDT RELAY 85 -----------86 --------ground

                   Diode cathode side is on the RIGHT

--------------->----->------> direction of current flow

is 1 amp too small here?????????  also i see that 12volt here has diodes on the other side of the SPDT relay.. i assume they are using 1 amp diode and i'ts ok

probably not for a relay. you should be ok.

you 100% sure?? what is the wattage rating of the coil of a 30/40 amp relay? (or tell me the resistance needed in the coil)

because i DO NOT want to pull out my wonderful wiring to change a few diodes here and there....

I've never really seen more than 1 amp diodes used in car alarm installs myself... 

1 Amp is fine.  The typical current draw of a 30/40A, 12V SPDT relay is about 150-200mA, by the way.

uh huh...

car alarms maybe but doing other stuff like lights and ign.. you need 30 amp diodes...

btw.. the 6amp got hot and turned RED.... didn't work... i ended up using a relay... and i didn't ha've to change out the diodes since 150-200ma is ok...

lucky me

6 amp? 30 amp?  From the diagram it didn't indicate you were using it for lights or ignition!  That's why I said 1 amp would be fine...

In the case of a high amperage circuit I would have definitely recommended relays.