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Take a look at our February Specials

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  • FAQ
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The KPAK3AUX cable set consists of two components:

  • 15-Pin to 15-Pin DE-15 KPA500-K3 Aux cable (E850463)
  • Key Line Interrupter adapter (E850462)


Enhanced functionality includes:

  • Dual power settings per band
  • Direct band entry from the KPA500/KPA1500 triggers the K3S, K3 or K4 to follow
  • Tracks K3S, K3 or K4 band changes automatically


The Key Line Interrupter provides integration for 3rd party devices to also control the KEY OUT signal from the K3S, K3 or K4 if required. Examples include SteppIR controllers, external tuners or screwdriver controllers.




Q: Do I need to order the KPA3AUX cable kit for my KPA500 and/or KAT500Z?

A: No.  You can use the RCA-to-RCA cables that come in the box with the KPA500 or KAT500.