Description
Product Overview
The ACDelco Coaxial Antenna Relay is engineered to meet General Motors original equipment specifications, delivering a precise fit and dependable performance for a range of GM vehicles. Constructed from high‑quality black insulated coaxial cable, the connector features a male‑to‑female configuration that simplifies installation and ensures a secure, interference‑free link between the antenna and the vehicle’s radio system. Weighing just 4 ounces and measuring 8.1 x 3.1 x 3.1 inches, this compact unit is designed for easy routing through tight engine bays while maintaining robust durability. The shielded design effectively blocks outside electrical noise, preserving signal integrity for clear audio and reliable data transmission.
Usage
This antenna relay is intended for replacement of factory‑installed units in GM cars, trucks, and SUVs. It is ideal for owners experiencing intermittent radio reception, signal loss, or antenna‑related error codes. Install the relay in the same location as the original part, connecting the male end to the vehicle’s antenna cable and the female end to the radio’s antenna input. The product is suitable for both DIY mechanics and professional service centers, offering a straightforward swap that restores full antenna functionality without the need for additional tools or modifications. 
Why Choose Us
Choosing the ACDelco Coaxial Antenna Relay means selecting a component that carries the reputation of GM‑approved quality. Each unit is manufactured to exact OE specifications, guaranteeing fit, form, and function that match the original part. The shielded construction provides superior protection against electromagnetic interference, a common cause of signal degradation in modern vehicles. Additionally, ACDelco’s rigorous testing ensures long‑term reliability, reducing the likelihood of future replacements and minimizing downtime for your vehicle.
Key Features
- GM‑recommended replacement that meets original equipment standards
- Male‑to‑female coaxial design for quick, secure installation
- Shielded cable protects against external electrical interference
- Durable black insulation resists wear and environmental exposure
- Lightweight (4 oz) and compact dimensions for easy routing
FAQ
Is this relay compatible with all GM models?
The relay is designed to fit a wide range of GM vehicles that use the standard coaxial antenna connector. Verify the part number 15048358 against your vehicle’s service manual to ensure compatibility.
Can I install the relay myself?
Yes, the male‑to‑female design allows for a straightforward plug‑and‑play installation. No special tools are required beyond basic hand tools to access the antenna wiring.
What does “shielded from outside electrical interference” mean?
The coaxial cable includes a metallic braid that blocks electromagnetic noise from surrounding components, ensuring a clean signal reaches your radio for optimal reception.
Is this part discontinued?
While the manufacturer lists the item as discontinued, ACDelco continues to stock it for replacement purposes, ensuring ongoing availability for service centers and consumers.
Will this affect my vehicle’s warranty?
Using an OEM‑specification part like this ACDelco relay typically does not void the vehicle’s warranty, as it matches the original equipment’s quality and performance standards.






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