Radio code won't work

SOURCE: how to change spark plugs on 2005 acura tl

Hi,

you need a 6 inch extension, short 3/8 ratchet, 5/8 plug socket, 3/8 swivel "u" joint, (sold at sears) 8mm 1/4 drive socket deep well and 1/4 inch ratchet.

find the coil packs (6 total, three in each head.)
remove the two retaining nuts holding each coil pack using 1/4 8mm socket and ratchet.
twist the pack to break the sticking boot below.
pull up (be careful to not rip the boots however it may still happen but rare.)
remove coil packs, the rear is a little more difficult with the intake.
use 6" extension and u joint and ratchet to remove plugs and replace.
reverse order to assemble. Good luck, and hoped this helped.

SOURCE: 2005 Acura TL Radio/Nav code

Your navigation code and radio codes writed on stikers on glovebox. Just open your glovebox and look on left side of gloivebox, not inside but outside. Open glovebox and look on left side. On my 2005 Acura RL NAV and Radio codes is different but it both on glove box. Sometime you even need to remove your glovebox cover to see those codes.

SOURCE: Acura tl 2008 CODE ERRORE

radio is locked out from installing incorrect code to many times need to disconnect battery for couple minutes then reconnect and install correct code

SOURCE: I need a radio code for my 1999 acura TL.

You must contact the parts department of your local Acura dealer to get this code. You will need to show them your car's registration to prove that you are the owner. You may be able to get the code with only the registration and the VIN code (found on the registration). Some manufacturers require the serial number on the radio, which would require that the radio be removed from the car to see the serial number.
Charlie

SOURCE: how to get code for 2005 acura tl radio code

just had this happen to me, you need to find the radio serial number, if you bought from a dealer then they should have put the number on the glove box plastic frame inside the glove box. If it is not there nor in your manual then you will have to take it in and get your radio taken out to see the serial number on the back of the actual radio. Once you find the serial number you can call any Acura dealer and give them the radio serial number and they will give you the code.