Run all of your wires and tubing up to the A-pillar.  Mark the plugs indicating which one is for the trans temp gauge and the pyrometer as they are identical with ISSPRO gauges.  The amplifier boxes can be mounted under the dash, held in with zip ties.  TIP: The lead wires coming off of the amplifier box for the transmission temp. gauge will be too short to reach the sender.  You can lengthen it by splicing in a length of 18 AWG (gauge) wire.