Is there a factory amp in your 99 Chevy Tahoe?

The 1999 Chevy Tahoe did not have a factory amplifier as standard equipment in most trims. Some higher-end trims or optional sound systems *might* have included one, but it wasn't a common feature. To know for sure if *your* specific 1999 Chevy Tahoe has a factory amp, you'd need to:

* Check the owner's manual: This is the best place to start. It will list the standard and optional audio equipment for your specific model.

* Inspect the vehicle: Look under the seats, in the trunk, and behind the dashboard for an amplifier unit. It will likely be a rectangular box with various wires and connectors.

* Check the wiring: Trace the wires from the speakers. If they go to a separate amplifier box before reaching the speakers, you have a factory amplifier.

Without more information about the specific Tahoe trim level and options, it's impossible to say definitively.