70-1720T - Uncategorized Metra - Free user manual and instructions
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| Product Type | Car Stereo Wiring Harness |
| Brand | Metra |
| Model | 70-1720T |
| Compatibility | Select Toyota and Lexus vehicles (1990s-2000s) |
| Wire Gauge | 18 AWG |
| Length | Approx. 12 inches (30 cm) |
| Connector Type | OEM-style plug on one end, bare wires on the other |
| Color Coding | Standard aftermarket (yellow-battery, red-ACC, black-ground, etc.) |
| Functions Included | Power, ground, ignition, speakers, amplifier turn-on |
| Installation | Plug-and-play, no cutting of factory wires required |
| Material | PVC insulated wires, plastic connectors |
| Weight | Approx. 0.2 lbs (90 g) |
| Power Handling | Up to 15 Amps continuous |
| Safety Features | Fuse recommended on power wire; insulated connectors |
| Repairability | Easy to splice or replace individual wires if damaged |
Frequently Asked Questions - 70-1720T Metra
What vehicles is the Metra 70-1720T compatible with?
The 70-1720T is designed for select Toyota and Lexus models from the 1990s and 2000s. Common applications include Corolla, Camry, Tacoma, and Lexus ES300. Always verify your vehicle's radio connector shape before purchase.
Does this harness provide ISO connectors?
No, the 70-1720T has an OEM-style plug on one end that matches the factory Toyota/Lexus radio, and bare wires on the other end for connection to an aftermarket stereo's harness.
What is the wire color code for this harness?
Standard aftermarket colors: Yellow (battery 12V constant), Red (ACC/ignition), Black (ground), Blue (amplifier turn-on), White/White-black (left front), Gray/Gray-black (right front), Green/Green-black (left rear), Purple/Purple-black (right rear).
Can I use this harness for a double-DIN radio?
Yes, the harness works with any aftermarket radio that has standard wire outputs. You will need to match wire functions accordingly.
Do I need a separate antenna adapter?
The 70-1720T only handles power and speaker wires. For antenna connection, you may need a separate Toyota antenna adapter (e.g., Metra 40-LE10).
How do I connect this harness to my aftermarket stereo?
Strip the bare wires from both harnesses, twist matching colors together, and secure with wire nuts or crimp connectors. Solder and heat shrink for a permanent connection.
The stereo does not turn on. What could be wrong?
Check that the Yellow wire has constant 12V (use a multimeter), the Red wire has 12V when ignition is on, and the Black wire is securely grounded. Also verify the vehicle's fuse for the radio circuit.
Can I use this harness for a non-Toyota vehicle?
No, the connector is specific to Toyota/Lexus. For other brands, use the corresponding Metra harness for that manufacturer.
Is this harness compatible with premium sound systems (e.g., JBL)?
For premium systems with external amplifiers, additional adapters (like Metra 70-8112) may be required. The 70-1720T connects to the factory radio plug but may not include the signal wires for amplified systems.
How do I clean or maintain this harness?
No special maintenance needed. Keep connectors dry and free of corrosion. If wires become damaged, replace the entire harness or splice a new section.
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USER MANUAL 70-1720T Metra
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Product information
Brand : Metra
Model : 70-1720T
Category : Uncategorized