Can you tell me where the battery is located on the alfa volcoe spider 1988

First why is your cluster dead? If it's one of the circuits, it can probably be fixed. Since you live in CO there are plenty of places around Boulder and Ft Collins who can repair circuits.

So so without knowing more I'd need to trouble shoot why the entire cluster is dead.

Yes harnesses can can be modified. If your car has the mouse type belts you're going to need to trace the circuit that powers the mouse. All things being equal, the '87 and '89 wiring should be similar except for the mouse part. You'll need wiring diagrams for your car and the donor cluster. You can get copies at Alfa BB. You'll need your connectors off your old cluster.

Again in these are electronic circuits and can likely be modified by computer repair or electronic circuit repair shops.

Good luck. Personally I hate the automatic belts.

You can request a PDF of the schematic on Alfa BB

Could be the main or fuel run relay located in the compartment under the luggage rack, passenger side, main relay also, fuse for the fuel relay 8amp. Electronic Control Unit is also located there.

Could be electrical, Hook up a timing light, three leads: Power, Ground, and one that goes around the wire to #1 cyl. Turn the engine over and see if there's firing. Note: u can check all 4 spark plugs this way.

Fuse lead goes to pin 30 of the fuel relay, u can jump 30 across to 57 and check for the pumps running, if not, change-I suggest both relays, main and fuel run relays. Both pumps get their 12v DC from the fuel run relay, both should be running when you switch ignition switch to on, then a tachymetric signal is fed from the coil to the relay to keep it running.

It's either your heater of the hoses running into and from it

its 187 to 195 nm hope that helps

I have an 89 one in fuel tank and one under car near differential, drivers side

I know of a company called engine transmission exchange. ETE. I would check them out on line.
I would also ask a local tranmission shop like aamco , cottman, if they have any on the shelf for purchase.

The timing marks are located on the front crankshaft pully, and under the cam shaft cover on the front of the front cam bearing cap and the cam shaft. On number one TDC all of these makes should be aligned,

Should be under the dashboard in the car

does it have a lock switch somewhere on the dash also check fuses failing that have the roof switch checked