How do you perform a resistance check and replace the antenna on Mercury Grand Marquis?

To perform a resistance check, ensure the antenna cable is installed on the vehicle and unplugged from the radio, then use an ohmmeter to check the antenna between the cable and tip, expecting a reading of less than 5 ohms; if the reading is higher, replace the antenna and cable assembly. For replacement, first disconnect the cable from the negative battery terminal. For a power antenna, lower the antenna, remove the rear screws from the right side front splash shield for access, and take out the lower antenna bolt. Next, remove the nut at the top of the antenna stanchion and lower the antenna through the fender opening, using needle nose pliers to unscrew the antenna stanchion nut. Installation follows the reverse order of removal. For a manual antenna, detach the antenna lead retaining clips in the engine compartment, remove the screws, and detach the right cowl side trim panel. Then, remove the radio and unplug the antenna lead cable, take off the radio antenna base cap, remove the mounting screws, and pull the base and cable assembly through the fender opening into the engine compartment, with installation again being the reverse of removal.

Genuine Mercury Grand Marquis Antenna

Radio Antenna

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Mercury Grand Marquis Aerial Assembly
Part Number: 9G1Z-15603-A
$68.40 MSRP: $80.00
You Save: $11.60 (15%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Aerial Assy
- Replaced by: DL3Z-15603-C
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2008-2011 Mercury Grand Marquis | 8 Cyl 4.6L Romeo SOHC EFI | 4-Speed Automatic Transmission 4R75E Livonia, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Mercury Grand Marquis Kit - Aerial
Part Number: 5C3Z-18813-AA
$27.75 MSRP: $39.53
You Save: $11.78 (30%)
ADD TO CART
Product Specifications
- Replaced by: MCPZ-18813-D
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
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Mercury Grand Marquis Rod Assembly - Replacement - Aerial
Part Number: D3AZ-18A886-A
$15.87 MSRP: $22.60
You Save: $6.73 (30%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Rod Assy - Replacement - Aerial; Antenna Mast, Mast
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1980-1994 Mercury Grand Marquis | 8 Cyl 4.2L, 8 Cyl 4.6L, 8 Cyl 5.0L, 8 Cyl 5.8L | 3AT, 3AT C4, 3AT C6, 4AT, 4AT AOD, 4AT AODE
View related parts
Mercury Grand Marquis Kit - Aerial
Part Number: F3SZ-18813-A
$27.75 MSRP: $39.53
You Save: $11.78 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Replaced by: MCPZ-18813-D
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2005 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT 4R70W
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Mercury Grand Marquis Rod Assembly - Replacement - Aerial
Part Number: F3AZ-18A886-A
$0.00
Product Specifications
- Other Name: Antenna Mast, Mast
- Manufacturer Note: Power radio antenna,includes mast & installation sketch,stainless steel
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1992-1994 Mercury Grand Marquis | 8 Cyl 4.6L | 4AT, 4AT AOD, 4AT AODE
View related parts
Mercury Grand Marquis Aerial Assembly
Part Number: 2W7Z-15603-AA
Product Specifications
- Other Name: Aerial Assy
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2002-2011 Mercury Grand Marquis | 8 Cyl 4.6L, 8 Cyl 4.6L Romeo SOHC EFI | 4AT 4R70W, 4-Speed Automatic Transmission 4R75E Livonia, Left Hand Drive, Rear-Wheel Drive (Left Hand Drive)
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Mercury Grand Marquis Kit - Aerial
Part Number: E3AZ-18813-A
Product Specifications
- Other Name: Antenna Assembly
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 1980 Mercury Grand Marquis | 8 Cyl 5.0L, 8 Cyl 5.8L | 3AT, 3AT C4, 3AT C6, 4AT AOD

Mercury Grand Marquis Antenna

We provide a wide range of Mercury Grand Marquis Antenna at the best prices possible. If you need Mercury Grand Marquis Antenna, you can shop with confidence on our website. All our OEM parts come with a manufacturer's warranty and are delivered to your door step with a fast delivery service.

Mercury Grand Marquis Antenna Parts Questions & Experts Answers

Rod Assembly - Replacement - Aerial
D3AZ-18A886-A
Q: How do you perform a resistance check and replace the antenna on Mercury Grand Marquis?
A: To perform a resistance check, ensure the antenna cable is installed on the vehicle and unplugged from the radio, then use an ohmmeter to check the antenna between the cable and tip, expecting a reading of less than 5 ohms; if the reading is higher, replace the antenna and cable assembly. For replacement, first disconnect the cable from the negative battery terminal. For a power antenna, lower the antenna, remove the rear screws from the right side front splash shield for access, and take out the lower antenna bolt. Next, remove the nut at the top of the antenna stanchion and lower the antenna through the fender opening, using needle nose pliers to unscrew the antenna stanchion nut. Installation follows the reverse order of removal. For a manual antenna, detach the antenna lead retaining clips in the engine compartment, remove the screws, and detach the right cowl side trim panel. Then, remove the radio and unplug the antenna lead cable, take off the radio antenna base cap, remove the mounting screws, and pull the base and cable assembly through the fender opening into the engine compartment, with installation again being the reverse of removal.